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EPA 608 NEC 2023

EPA 608 Type 1 Exam Practice Test 2

Free EPA 608 Type 1 exam Practice Test - 2

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The EPA 608 certification is required by law for any technician who purchases or handles refrigerants. It covers safe handling, leak detection, recovery, and environmental regulations.

Type I covers small appliances (≤5 lbs refrigerant), Type II covers high-pressure systems, Type III covers low-pressure systems, and Universal covers all three. Most HVAC technicians pursue Universal certification.

You must score at least 70% on each section of the exam. The Universal exam has four parts: core, Type I, Type II, and Type III.

How to Use This Practice Test

This EPA 608 Type 1 Exam Practice Test 2 has 15 questions with detailed answers and NEC references. Take the full test, review every wrong answer, and look up the NEC article it references before moving on.

Tip: The EPA 608 exam is NOT open book — memorize refrigerant ODP/GWP values and recovery rules before the exam.

Topics covered: Refrigerant regulations, recovery procedures, leak detection, and refrigerant properties.
Passing score: 70% required on each section. Universal certification requires passing all four sections.
Questions: 15 multiple-choice, one correct answer each

15

Questions

23 min

Time

70%

Pass

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EPA 608 Type 1 Exam Practice Test 2 — Question List

Question 1: In new household refrigeration which of the following refrigerants is most commonly used as a replacement for R12 refrigerant?

R-123
R-24
R-234
R-134a

Question 2: R12 and R22 refrigerants can decompose to ............... form at higher temperatures.

Hydrogen gas
Helium gas
Phosgene gas
Nitrogen gas

Question 3: The recovery equipment manufactured after ................ Must be certified by EPA laboratory to use for service or repair of small appliances.

July 12,1993
November 15,1993
June 15,1992
May 12, 1993

Question 4: For type 1 refrigeration appliance what is the the maximum allowable charge of refrigerant?

4 pounds
5 pounds
7 pounds
10 pounds

Question 5: Which of the following refrigerants can be mixed?

R-12 and R-134a
R-12 and R-500
R-22 and R-410A
Refrigerants can never be mixed

Question 6: The sale of refrigerant ...........

Banned
Limited to equipment owners
Allowed only if there is any proof of need
Restricted to EPA certified technicians.

Question 7: After completion of refrigerant repair, the solder-less piercing valves should be removed from refrigeration system because ............

There are two expensive
They tend to leak over time
They became loose and vibrate
Both en pensive and loose on system.

Question 8: When ever the pressurized nitrogen is used to blow debris out of the system ..............

only nitrogen vapor should be used
only liquid nitrogen should be used
Either liquid or vapor nitrogen can be used.
nitrogen vapor mixed with R-134 should be used

Question 9: The refrigerant recovery procedure should always be started after ......................

determining the type of refrigerant to be recovered
allowing system to be stabilized
moving the system to outdoor position
disconnecting the system from power source

Question 10: Under EPA section 608 which of the following refrigerants must be recovered currently from refrigeration equipment?

R-12
sulfur dioxible
methyl cloride
carbon monoxide

Question 11: Which of the following is perfect option in the event of large release of R-12 or R-22 in a contained are?

wearing safety googles and hand gloves
wearing self contained breathing operators
wearing dust masks to protect against harmful vapors
flushing nitrogen in the leaked area

Question 12: The following maintenance practice should be performed on recovery equipment as per EPA guidelines?

checking recovery device for refrigerant leaks
checking vacuum pump for any refrigerant leaks
checking the ampere current drawn by the recovery device
checking the correct functioning of recovery device

Question 13: Portable refillable refrigerant containers must met the following standard to be used to ship the recovered refrigerants.

Depart of Transportation
ARI 740
Community Right-to-know act
Environmental agency

Question 14: In a refrigerant recovery or repair from a refrigeration system if a pungent odor is detected .......................

It is the smell of the leaking oil in the system
the refrigerant should not be recovered
it indicates the leakage of the refrigerant
a compressor burnout has likely occured

Question 15: Which of the following is not a Type I refrigerant appliance?

an MVAC like system that holds three pounds of R-12
A water cooler that holds 13 ounces of R-12
A food freezer that holds 44 ounces of R-22
A dehumidifier with seven ounces of R-500

Study Tip: The EPA 608 exam is closed book. Memorize: recovery is required before opening any refrigerant system. Venting refrigerant is illegal. Know the ODP and GWP values for R-22, R-410A, R-134a, R-32, and R-454B.

EXAM CARD EPA 608

Questions15

Time limit23 min

Pass score70%

Code editionNEC 2023

DifficultyIntermediate

Last reviewedJun 2026

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Source: EPA Section 608 (40 CFR Part 82)